Energy is the capacity to do work. There are different forms of energy including mechanical energy, which can be kinetic energy from an object in motion or potential energy from an object at rest due to its position. Potential energy exists in different forms such as gravitational potential energy from an object's height, chemical energy stored in substances, and elastic potential energy stored in compressed springs.
2. ENERGY
Later people learned to harness the energy of
animals to aid them in doing work.
Machines were invented to do numerous works
easier and faster.
A person is said to be energetic when he or she
does many things with out getting tired easily.
INTRODUCTION:
8. • The pendulum possesses
Mechanical energy because
when it is at rest it is in the
state of Potential energy at
point 1 and point 3, when it
in motion it is in the state of
Kinetic energy at point 2.
16. FORMS OF POTENTIAL ENERGY
• CHEMICAL ENERGY
-is the energy possessed by the atoms or
molecules of a substance and is later on
change into other forms when the
substance becomes involved in a
chemical reaction.
17. The food that you eat that
contains stored energy
that becomes converted
in another form in
digestion and provides
energy to work..
18. FORMS OF POTENTIAL ENERGY
• ELASTIC POTENTIAL ENERGY
- is the energy possessed any elastic
material due to its condition.
19.
20. Work is done on the spring when it is
compressed and in the process of it
acquires potential energy.
This energy depends on the average
force required to compress it and the
distance from its normal length.
21.
22. EVALUATION
1. What is energy?
a. It is the capacity to make power.
b. It is the capacity to do work.
c. It is the capacity to be energetic.